Take the challenge.....

Take the challenge.....The first one to answer this question gets 100 clean jokes in his or her mailbox, free.................In a get-together, every person present shakes hand with every other person once......If there are 91 handshakes in all, how many people attended the party?Don't take more than 5 minutes for answering this.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Re: Take the challenge.....

Let me see

If there was only one person, there would be no handshakeIf there were two then there would be one handshake (AB)With three people there would be three handshakes (AB, AC, BC) With four there would be be (AB, AC, AD, BC, BD, CD) = 6With five there would be be (AB, AC, AD, AE, BC, BD, BE, CD, CE, DE) = 10

*brnnggggg*

Oh, no, my five minutes is up!

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

Re: Take the challenge.....

°C=K-273.15°F=1.8°C+32∴ °F=1.8(K-273.15)+32

Ganesh wants to know when these are the same, so solve y=1.8(y-273.15)+32.Expand the brackets: y=1.8y-491.67+32Combine the numbers: y=1.8y-459.67Add 459.67-y to both sides: 0.8y=459.67Solve: y=575°F/K to the nearest unit. We can't really be more accurate than that because we don't know the exact value of how much bigger K is than °C.

To keep with the theme of temperature, if you have one bucket of water at 30°C and one at 30°F and drop a ball (that sinks!) into both, which will reach the bottom first?

Re: Take the challenge.....

mathsyperson is correct.....neat work....the exact value is 574.5875 and we take degrees centigrade plus 273..15 as Kelvin temperature....Coming to his question, the bucket of water would at 30 degrees Fahrenheit would have frozen at thirtytwo degree F! so the ball wouldn't sink in the bucket of water at 30 deg f!!!

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.